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Finding the Fourth Proportional to 415,089.35, 622,634.48 and 115,570.58

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Solution

The fourth proportional to 415,089.35, 622,634.48 and 115,570.58 is: 173,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,089.35 : 622,634.48 = 115,570.58 : x
  2. Step 2: Convert to fraction form
    415,089.35/622,634.48 = 115,570.58/x
  3. Step 3: Cross multiply
    415,089.35x = 622,634.48 × 115,570.58
  4. Step 4: Simplify right side
    415,089.35x = 71,958,227,981.60
  5. Step 5: Solve for x
    x = 71,958,227,981.60/415,089.35
  6. Step 6: Final answer
    x = 173,356.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.